The vessel has deballasted and the rig is now clear of the water.
The Transocean Winner semisubmersible has been safely loaded onto Offshore Heavy Transport’s semisubmersible heavy-lift vessel Hawk. (Photo courtesy UK Maritime & Coastguard Agency)
The MCA verification aircraft was on scene Thursday (Oct 6) and no pollution was sighted or reported. However, late Thursday some leakage was spotted in the water, which is believed to have been a maximum of 50 L (13 gal) of hydraulic or gear oil. MCA says it is thought to have come from a damaged part of the rig and appropriate counter-pollution measures were taken.
A further check flight by the MCA aircraft next day over the Hawk and the wider area across Broad Bay has found no further oil.
Vessels with counter-pollution equipment will remain on scene until there is no longer any threat of a release from the damaged sponsons.
Preparations are now being made to begin the sea fastening operations.
Assessment of the damage began Friday, Oct. 7, and other work is starting to prepare the Hawk for its passage to Malta. This could take four or five days to be completed.
The rig ran aground Dalmore Bay, on the Isle of Lewis, on Aug. 8. It was shortly thereafter refloated and transported to Broad Bay, where it has been waiting on a safe weather window to resume removal operations.
Source: Offshore Mag